baber/WOPTO huggingface dataset:
Patent GB-1309154-A (GB)
Title: Manufacture of crystalline potassium peroxydiphosphate
IPC: C25B1/28
Filed: 1970-11-02
Abstract: 1309154 Potassium peroxydiphosphate FMC CORP 2 Nov 1970 [4 Dec 1969] 51962/70 Heading C1A Free flowing crystals of potassium peroxydiphosphate are prepared by evaporating water from an aqueous solution containing potassium, peroxydiphosphate, phosphate and fluoride ions with a pH between 11À0 and 13À5, at a temperature between 50‹ C. and the boiling-point of the solution, to cause precipitation of the crystals and separating them from the mother liquor. The solution may contain more peroxydiphosphate ion than phosphate ion. The crystals, which may be further purified by recrystallization, either alone or with potassium orthophosphate (Examples 2 and 3) may be size separated with fines being redissolved. The process may be performed in a continuously operated evaporative crystallizer. The solution may be an anolyte obtained by electrolysis of an aqueous solution of a potassium phosphate and potassium fluoride mixture. In Example I, feed solution containing 17% K 4 P 2 O 8 ,13% K 3 PO 4  and 11% KF (pH 12À0 to 12À2) was fed to fines dissolver at 2À8 l./hour along with water (2.6 1./hour) and overflow from crystallizer at 9À6 1/hour). Slurry was withdrawn at 2 1./hour from crystallizer at 80-90‹ C., removing 3À5 kg. of water/hour. The product was obtained in the form of 100 to 50 mesh size (U.S. standard sieve) free-flowing crystals.
Patent GB-1118206-A (GB)
Title: Preparation of epoxy esters
Inventor: FOSTER GORDON
IPC: C07D303/16
Filed: 1964-12-22
Abstract: Epoxy esters are made by heating an epoxy alcohol having a primary or secondary hydroxyl group with an ester of a mono- or di-carboxylic acid free from ethylenic unsaturation in the presence of an alkaline transesterification catalyst.  Specified catalysts are Na and K metals and the hydrides, hydroxides and alkoxides thereof.  The reactant ester is preferably derived from an alcohol which boils at a temperature below the reaction temperature, e.g. methyl or ethyl alcohol.  Specified epoxy alcohols include glycidol, epoxy-hexanols, epoxy-methyl - pentanols, epoxy - cyclohexanols and epoxy-ethyl-butanols. Examples relate to the esters of benzoic, butyric, chloroacetic, palmitic, succinic and terephthalic acids.
Patent GB-1452919-A (GB)
Title: Electric connectors
IPC: H01R13/40
Filed: 1973-11-15
Abstract: 1452919 Edge connectors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 15 Nov 1973 [6 Dec 1972] 53143/73 Heading H2E [Also in Division C7] A connector comprises a housing with a slot 21 for receiving circuit edge contacts 23 of a circuit panel 22 and a plurality of spring contacts 25, each in a respective receptacle of the housing and comprising an end portion 38 in a recess 27, a terminal portion 28, a straight mating portion 36 and three curved portions 33, 35, 37, the contacts being disposed and adapted to yield when engaged by the circuit panel so that the straight portion 36 is moved sufficiently to cause the curved portions 33, 35 to be bent through more than 180 degrees. The contacts are phosphor bronze coated with copper and tin or tin alloy. The housing 15 comprises front, rear and base walls 16, 17, 18 with transverse webs 24 dividing the housing into the receptacles and a wall 26 defining with wall 17 and webs 24 the recesses 27. An extension 19 rests on the surface of a mother board 20 through whose openings 30 the terminal portions 28 extend. The connector may be secured to the mother board by U-shaped straps (54) with end lugs (56) or by bifurcated rivets (62) which engage holes in the mother board. The housing may have legs (51-53) which bear against the mother board to resist bending. Polarizing means may comprise a projection (107) on the housing which co-operates with a matching hole in the mother board and also keys (127) fitted in grooves (120) of the webs 24; the keys may be of metal and be earthed for use as a screen.
Patent GB-1511620-A (GB)
Title: Nuclear reactor
IPC: G21C9/00
Filed: 1976-12-20
Abstract: 1511620 Nuclear reactor INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 20 Dec 1976 [22 Dec 1975] 53162/76 Heading G6C A nuclear reactor includes a "core-catcher" receptacle disposed beneath the core and comprising an upper layer 3 of a material such as uranium dioxide or thorium dioxide having a high melting point, good chemical stability and low thermal conductivity, and a lower layer 2 of a material such as graphite having a good thermal conductivity. The receptacle includes an outer metallic layer 1, a shield 4 against mechanical damage, and a heat exchanger 5 filled with a liquid rodium/potassium alloy. The graphite layer 2 may be made up of 2 elongate bodies of hexagonal cross-section. The reactor may be a liquid sodium cooled fast breeder reactor.
Patent GB-1162388-A (GB)
Title: A method of producing an internally screw-threaded nut from sheet metal, and an automatic machine for use in carrying out said method.
IPC: B21K1/64
Filed: 1966-11-28
Abstract: 1,162,388. Making nuts. H. T. GOLDE G.m.b.H. 28 Nov., 1966 [9 Dec., 1965], No. 53252/66. Heading B3A. [Also in Division F2] In a method of producing nuts from sheet metal shaped into a tubular form, Fig. 3, material is displaced during the shaping operation towards the position of the threaded hole 8. A dish 3 is first formed in the sheet blank 1 by a deep drawing or stamping tool, arranged concentrically with which is an attached or independently actuable upsetting tool which forms an annular impression 2 and an enlargement 4 in the blank 1. In the next operation, a hole (5), (Fig. 2, not shown), is formed in the dish 3, towards which material is further displaced leaving an annular impression 6. In a third operation, the hole (5) is expanded by a punch to form a tube 8, material being further displaced by a tool leaving an impression 7. An internal screw-thread is made by machining or by simultaneously pressing during the shaping operation. The hole 8 may be frusto-conical in shape.
Patent GB-1137197-A (GB)
Title: A shaft seal
IPC: F16J15/34
Filed: 1967-11-22
Abstract: 1,137,197. Shift seal. P. K. S. NORBERG. 22 Nov., 1967, No. 53269/67. Heading F2B. In a seal for a rotary pump shaft 4, comprising a seal housing 1, 2 supplied with sealing liquid under pressure and enclosing two pairs of sealing rings, each pair comprising a non- rotary ring 8, 10 and a rotary ring 9, 11 urged axially into sealing contact with one another by a spring 17 disposed between the two pairs of rings, the rotary sealing rings 9, 11 being sealed to the shaft by elastic rings 20, 21, means are provided for regulating the spring loading and the pressure of the sealing liquid. The rings 8 and 10 are mounted in holders 14 and 15 respectively, the latter forming the inner end of a spring load adjusting sleeve 6 which is screwed into the end wall 5 of the seal housing and can be locked in position by a lock nut 7. The spring 17 compresses the rings 20 and 21 between the shaft 4 and conical surfaces on the rings 9 and 11 through support rings 18 and 19 respectively. Sealing liquid, preferably water, which may also act as a coolant, is passed through the interior 30 of the housing via an inlet 31 and an outlet 32 at a pressure which is controllable by a throttle valve 33 and during normal operation exceeds that of the pumped liquid so that a small amount of sealing liquid leaks passed the sliding surfaces 12, 13 of the rings 8, 9 and 10, 11. To prevent leakage of sealing liquid when the pump is at rest, the axial pressure exerted by the sleeve 6 may be transmitted direct to the rings 8, 9 and 10, 11 by either compressing the spring 17 until its coils abut one another or by-passing the spring by fitting a sleeve between the rings 18 and 19 and/or between the rings 9 and 11.
Patent GB-1090685-A (GB)
Title: Improvements in, and relating to a device for thermal treatment of commodities packed in tins
IPC: A23L3/04
Filed: 1965-12-20
Abstract: 1,090,685. Sterilizing food &c. in tins. GEBR. STORK & CO.'S APPARATENFABRIEK N.V. Dec. 20, 1965 [Dec. 23, 1964], No. 53879/65. Heading A2D. [Also in Division B8] Rows of adjacent heat treated tins 6 on an endless conveyer after passing through an overpressure steam chamber 1 and a fluid cooled discharge section 2 of a sterilizing apparatus, are sprayed with heated water containing a surface tension decreasing agent at 7, jogged in an upward direction at 20 (see Division B8) to remove any water lying between adjacent tins 6, pass over a bend in the conveyer at 23 to allow any water trapped in a corner of a flange to drain off and are finally dried by an air stream within a hood 27.
Patent GB-1254113-A (GB)
Title: Reinforced concrete tank
IPC: E01C19/20
Filed: 1968-11-13
Abstract: 1,254,113. Concrete tanks. K.H. HUSTER. 13 Nov., 1968 [13 Nov., 1967], No. 53880/68. Heading E1T. A concrete tank re-inforced by longitudinal bars, transverse rings 3 and coarse steel mesh 6, 7 arranged below the inner and outer surfaces respectively is coated on at least one of said surfaces with a plastics material such as an epoxide resin. The tank has an opening reinforced by three rings 14 and closed by a plate 12 and a seal 13. For other coating materials employed, dimensions and details of reinforcements the Specification should be referred to.
Patent GB-1348179-A (GB)
Title: Tonometers
IPC: A61B3/16
Filed: 1972-11-24
Abstract: 1348179 Tonometers AMERICAN OPTICAL CORP 24 Nov 1972 [26 Nov 1971] 54454/72 Heading A5K An air-pulse tonometer comprises a pneumatic device 10 for directing a pneumatic pulse along an axis 26 at the corneal surface 20 of an eye to be tested, an optical monitoring system 22, 24 (Fig. 4) for determining the effect of the pulse on the surface, an alignment system for responding to misalignment between the axis 26 and that of the corneal surface, the response from this system being fed back to the pneumatic device 10 so that the latter cannot operate unless the axes are aligned. The pneumatic system comprises a piston 8 and cylinder 16 operated by a solenoid 4, the air-pulse being emitted through a tube 18 arranged axially of a microscopeobjective 14. The alignment system comprises a light-source 38 projecting light through a transparent surface 42 carrying a target 44 an image of which is finally produced upon the veticule 34 by the system of mirrors 46. 48 and lenses 50, 14, 30 after reflection from the corneal surface 20. Simultaneously, a light-beam from a diode 54 follows the same path, but a beam-splitter 32 deflects part of it to a detector 56 sensitive to the frequency of the light from the diode. Correct imageformation at 34, 56 is obtained only when the corneal centre-of-curvature lies on the imageplane 58 of the objective 14. The operation of the solenoid 4 is dependent on the output from the detector 56. To accommodate different refractive characteristics of different eyes, a rotatable turret 62 of correcting lenses 64 is mounted in the projecting system 38, 46 48, 50.
Patent GB-1173757-A (GB)
Title: An Electrical Component
IPC: H01L23/38
Filed: 1966-12-07
Abstract: 1,173,757. Solid state devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 7 Dec., 1966 [8 Dec., 1965], No. 54712/66. Heading H1K. Voltages are applied across the two non- rectifying junctions of a three-layer thermoelectric device in such a way that " hot " majority charge carriers are injected across the central layer from a junction rendered hot by the Peltier effect to one rendered cold by the same effect. The current in the circuit incorporating the cold junction is thus modulated by the current in the circuit including the hot junction, or vice versa, and an active device having a good high-frequency response results. The thermoelectric materials forming the device may comprise metals, alloys or semi-conductors in various combinations, and either the same or different materials may be used for the two outer layers. In one embodiment an electron gas in a vacuum or an ionized gas is interposed between the central layer and one of the outer layers, the " hot " carriers injected through the central layer from the first outer layer passing through the vacuum gap or ionized gas region before reaching the second outer layer. The various layers may be formed by vapour deposition, for example on to an insulating substrate, cathode sputtering or spraying, or by electrochemical or chemical plating. Alternatively they may be formed as thin sheets which are welded together, such as by pressing or rolling. Various relationships between the voltages applied to the two junctions are proposed for materials of different conductivity type.
Patent GB-1263454-A (GB)
Title: Improvements in and relating to resistance alloys
Inventor: DARLING ALAN SYDNEY
IPC: H01B1/02
Filed: 1967-12-04
Abstract: 1,263,454. Pd-Ag alloys. JOHNSON MATTHEY & CO. Ltd. Feb.24, 1969 [Dec.4, 1967], No.55050/67. Heading C7A. An alloy useful as a slide wire for potentiometers consists, by weight, of 26-60% Ag; 0À01-2% of (a) B or C, (b) Ir, Re or Mo, or (c) aluminium oxide, zirconium oxide or molybdenum disulphide; and Pd as the balance of the alloy.
Patent GB-1384808-A (GB)
IPC: F02M3/02
Filed: 1972-12-04
Abstract: 1384808 Spray carburetters FORD MOTOR CO Ltd 4 Dec 1972 [3 Dec 1971] 55856/72 Heading F1B To prevent running-on when the ignition is switched off an air bleed 40 to the idling mixture system 22...36 is opened by a valve 48. The valve solenoid 51 is energized to open the bleed 40 when the ignition switch 58 is moved to the off position and the solenoid is connected to the stator terminal 62 of the alternator 60. The solenoid spring 54 closes the valve 48 when the alternator voltage decays to a predetermined level.
Patent GB-1168638-A (GB)
Title: Bobbin Transporting Apparatus.
IPC: D01H9/18
Filed: 1966-12-14
Abstract: 1,168,638. Conveying textile bobbins. ZINSER-TEXTILMASCHINEN G.m.b.H. 14 Dec., 1966 [16 Dec., 1965; 7 April, 1966], No. 55972/66. Heading D1F. Apparatus for conveying empty bobbins 17 into the proximity of a spindle rail 12 and conveying full bobbins 16 therefrom comprises a conveyor 20 extending along the spindle rail, at least one row of bobbin supports 25 on the conveyor, the row having substantially the same length as the spindle row, means 54 at one end of the conveyor for putting empty bobbins on at least some of the supports, a station 55 for receiving full bobbins from the supports and driving means to move the conveyor so that the holders pass the loading means and the receiving station. The supports are preferably spaced at half a spindle spacing so that empty bobbins are placed on alternate supports as the conveyor moves the supports past means 54 and the full bobbins are placed on the intermediate supports when the conveyor is stopped with the supports adjacent the spindles. Alternatively the supports may be in pairs at a full spindle spacing or they may be in offset rows. Only one support may be provided for each spindle inwhich case the full bobbins have to be placed thereon, moved to the receiving station, empty bobbins put on the support and then moved back to the spindles. The bobbins are a friction fit on the frusto-conical supports. The supports for the empty bobbins may be taller than the supports for the full so that they are more accurately located to be engaged by the donning means. The conveyor belt of metal or of synthetic material with polyester reinforcing cords is guided in its upper and lower runs by flanges in the interior of a casing 18. In Fig. 3 not shown the edges of the upper run lie between upper and lower longitudinally extending flanges to prevent lateral tilting. A bobbin on a support protruding between the upper flanges slides along the upper sides of the top flanges. The sides of the lower run are merely supported from beneath. In other forms the lower parts of the supports are cut away to engage walls of the flanges to be located and guided.
Patent GB-1247923-A (GB)
Title: Improvements in or relating to internal combustion engines having electrically controlled petrol injection
IPC: F02M3/04
Filed: 1968-11-27
Abstract: 1,247,923. Regulating I. C. engine fuel injection. ROBERT BOSCH G.m.b.H. Nov.27, 1968 [Dec.14, 1967], No. 56191/68. Heading F1B. In an I. C. engine for use in motor vehicles, having electronically controlled petrol injection into the intake manifold, the fuel supply is interrupted when the vehicle is driving the engine, in dependence on at least one operating factor of the engine characterizing this operating state (such as the intake manifold pressure, or the engine speed and the position of the throttle valve), and the vacuum created in the intake is limited by a valve which reduces the effect of a throttle valve arranged in the intake manifold. This avoids poor pick-up due to the relatively long time taken to break down a high vacuum when acceleration is required and also reduces emission of unburnt hydrocarbons. The valve, which is inset into the butterfly throttle valve flap, may be spring-loaded or operated by a solenoid in dependence on the above-mentioned factors.
Patent GB-1293833-A (GB)
Title: Process for the production of polyurethane moldings
IPC: C08G18/00
Filed: 1970-11-27
Abstract: 1293833 Polyurethane foams CINCINNATI MILACRON Inc 27 Nov 1970 [3 Dec 1969] 56476/70 Headings C3C and C3R Polyurethane foams are prepared by (1) mixing a polyisocyanate, a polyol and a blowing agent; (2) passing the resultant liquid as a substantially non-reacted, non-expanded liquid mixture into the cavity of a closable mould; (3) allowing the liquid to expand and fill the cavity of the closed mould as the polyurethane is formed and (4) curing and removing the resultant moulded article, the blowing agent being a mixture of stable volatile organic liquids of differing volatilities, which liquids have atmospheric boiling points from - 50‹ to 120‹ F., the blowing agent after being mixed with the polyisocyanate and polyol exhibiting a vapour pressure of not greater than 1 atmosphere at 110‹ F. The blowing agent is most suitably a mixture of two organic liquids, one having a boiling point of 30‹ to 120‹ F. and the other a boiling point of - 50‹ to 50‹ F., the difference between their boiling points being 30‹ to 150‹ F. Suitably the liquids are fluorocarbons, chlorofluorocarbons, bromofluorocarbons or perfluorocarbons and most suitably the mixture is one of dichlorodifluoromethane and trichloromonofluoromethane. Numerous other mixtures are listed. Conventional polyisocyanates and polyols are used and the reaction mixture suitably contains a surface-active dispersing agent and/or a catalyst for urethane polymerization.
Patent GB-565542-A (GB)
IPC: C10B57/18
Abstract: 565,542. Gas manufacture. PARKINSON & COWAN (GAS METERS), Ltd., GAVIN, R. J., and GREEN, K. R. March 17, 1943, No. 4344. [Class 55 (ii)] Apparatus for reducing the calorific value of gas by diluting it with gas from the retort-heating producer comprise an off - take b leading from the producer at a point below the secondary air ports therein, a dustseparating chamber c between the off take and a series of parallel-connected cooling-tubes g and a filter connected between these tubes and an outlet from which the cleaned and cooled gases are delivered to the main stream of coal gas. In the apparatus shown, the chamber c and cooling tubes g are connected by way of a further cooling tube e. The filter j is filled with layers of sisal or hemp, and is provided with a water-sealed drain pipe m.
Patent GB-1274556-A (GB)
Title: Motor vehicle headlamp system
IPC: F21V17/00
Filed: 1969-11-20
Abstract: 1,274,556. Vehicle headlamps. GENERAL MOTORS CORP. 20 Nov., 1969 [29 Nov., 1968], No..56782/69. Heading F4R. [Also in Division H1] In a vehicle headlamp .system each lamp is provided-with a.plurality of reference and seating elements which co-operate with a mounting plate on the wehicle to ensure that the headlamp beams are correctly aligned. In the preferred embodiment two sealed beam lamps 24, 26 are provided on each side of the vehicle, each pair of lamps being secured to a respective mounting plate 22 by a retaining ring 68 held by a plurality of spring-loaded hooks 74. Each mounting plate is attached at its upper edge to the vehicle frame 16 by a hinge 20 made of plastics material such as polypropylene and comprising a -pair of elongated plates 80, 82 joined by a flexible web 84. The plate 80 is secured to the frame 16 by two bolts 92, 97, the former passing through a hole in the plate and the latter through a slot 90 (Fig. 8) so that the mounting -plate 22 can be adjusted about a vertical axis through the bolt 92. At its lower edge the mounting plate :is connected to the vehicle frame by a -tension spring 104, angular adjustment of the plate about the hinge 20 being effected by a screw 102 which passes through a nut 99 attached to the plate and abuts the frame 16. Each lamp has three rearwardly-extending reference elements 53 which engage seating surfaces 66 on the mounting plate and are ground during manufacture to define a seating plane 58 at a predetermined angle to the axis of the light beam emitted by the lamp. When the light beams have been correctly set relative to the vehicle, individual lamps can be replaced without beam re-alignment being necessary. The system includes a pair of gauges which give a visual indication of the headlamp setting, thus obviating the need for external aiming equipment. The vertical setting is shown by a liquid level 120 secured to the inboard end of the mounting plate 22, and the horizontal setting is indicated by a pentagonal block 140 formed on the upper surface of the hinge plate 80 and disposed below a wire 142 stretched transversely across the front of the vehicle. The liquid level has two sets of rings 134, 136 which indicate the correct setting and the limits of tolerable misalignment. Similar indications are given by the apex 156 and the edges 152, 154 of the block.
Patent GB-1195922-A (GB)
Title: New beta-Aroyl-beta-Halogenoacrylic Acids, and Method of Producing Same
IPC: C07C59/90
Filed: 1968-02-16
Abstract: 1,195,922. # - (Substituted benzoyl) - # - haloacrylic acids. SPOFA, UNITED PHARMACEUTICAL WORKS. 16 Feb., 1968 [18 July, 1967], No. 57030/69. Divided out of 1,195,921. Heading C2C. Novel # - (substituted benzoyl) - # -haloacrylic acids having anti-neoplastic effects of the general formula wherein X is a halogen atom, R 1  is a hydrogen atom or a C 1-6  alkoxy group, R 2  is a hydrogen atom or a hydroxy or C 1-6  alkoxy group and R 3  is a C 1-6  alkoxy group, with the proviso that when R 1  and R 2  are hydrogen atoms, R 3  is not a methoxy group, are prepared by hydrolysis of a y - (substituted phenyl) - α,# - dihalo - #<SP>α,#-</SP> crotonolactone of the general formula
Patent GB-1377063-A (GB)
Title: Silicazirconia supported catalysts
IPC: B01J23/84
Filed: 1970-12-02
Abstract: 1377063 Hydrocracking catalyst SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 30 Nov 1971 [2 Dec 1970] 57250/70 Heading B1E [Also in Division C5] A hydrocarbon conversion catalyst on a silica-zirconia support has at least 0.015 gm. atoms of nickel and/or cobalt and at least 0.10 gm atoms of molybdenum and/or tungsten and/or rhenium per 100 gms of support with a ratio of first metals to second metals of 0.10:1 to 0.75:1.
Patent GB-1276840-A (GB)
Title: Chimney outlet
Inventor: LEES BYROM
IPC: F23J11/00
Filed: 1968-12-03
Abstract: 1276840 Chimney tops BRITISH PETROLEUM CO Ltd 5 Nov 1969 [3 Dec 1968] 57251/68 Heading F4J A chimney top made of fibreglass bonded with a resin includes a restricted nozzle 11 spaced from an outer tube 10 attached by a flange 16 to the chimney. The restriction in the nozzle speeds up the outflowing gases and said gases accumulate in the space 12 keeping the nozzle hot. Both these factors tend to inhibit the formation of smuts in the gases.